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midx-write: revert use of --stdin-packs

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This reverts b7d6f23a17 (midx-write.c: use `--stdin-packs` when
repacking, 2024-04-01) and then marks the test created in the previous
change as passing.

The fundamental issue with the reverted change is that the focus on
pack-files separates the object selection from how the multi-pack-index
selects a single pack-file for an object ID with multiple copies among
the tracked pack-files.

The change was made with the intention of improving delta compression in
the resulting pack-file, but that can be resolved with the existing
object list mechanism. There are other potential pitfalls of doing an
object walk at this time if the repository is a blobless partial clone,
and that will require additional testing on top of the one that changes
here.

Signed-off-by: Derrick Stolee <stolee@gmail.com>
Acked-by: Taylor Blau <me@ttaylorr.com>
Signed-off-by: Junio C Hamano <gitster@pobox.com>
This commit is contained in:
Derrick Stolee 2024-07-18 19:55:46 +00:00 committed by Junio C Hamano
parent 738fab524c
commit 8fb6d11fad
2 changed files with 10 additions and 10 deletions
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18
midx-write.c
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@ -1474,8 +1474,7 @@ int midx_repack(struct repository *r, const char *object_dir, size_t batch_size,
repo_config_get_bool(r, "repack.usedeltabaseoffset", &delta_base_offset);
repo_config_get_bool(r, "repack.usedeltaislands", &use_delta_islands);
strvec_pushl(&cmd.args, "pack-objects", "--stdin-packs", "--non-empty",
NULL);
strvec_push(&cmd.args, "pack-objects");
strvec_pushf(&cmd.args, "%s/pack/pack", object_dir);
@ -1499,15 +1498,16 @@ int midx_repack(struct repository *r, const char *object_dir, size_t batch_size,
}
cmd_in = xfdopen(cmd.in, "w");
for (i = 0; i < m->num_packs; i++) {
struct packed_git *p = m->packs[i];
if (!p)
for (i = 0; i < m->num_objects; i++) {
struct object_id oid;
uint32_t pack_int_id = nth_midxed_pack_int_id(m, i);
if (!include_pack[pack_int_id])
continue;
if (include_pack[i])
fprintf(cmd_in, "%s\n", pack_basename(p));
else
fprintf(cmd_in, "^%s\n", pack_basename(p));
nth_midxed_object_oid(&oid, m, i);
fprintf(cmd_in, "%s\n", oid_to_hex(&oid));
}
fclose(cmd_in);

2
t/t5319-multi-pack-index.sh
View File

@ -1004,7 +1004,7 @@ test_expect_success 'repack --batch-size=<large> repacks everything' '
)
'
test_expect_failure 'repack/expire loop' '
test_expect_success 'repack/expire loop' '
git init repack-expire &&
test_when_finished "rm -fr repack-expire" &&
(